| PartNumber | LTM4637IY#PBF | LTM4637IY | LTM4638EY#PBF |
| Description | Switching Voltage Regulators 20A DC/DC Module Step-Down Regulator | Switching Voltage Regulators [Tin-Lead SnPb BGA] 20A DC/DC Module Step-Down Regulator | Switching Voltage Regulators 20V, 15A Step-Down DC/DC ?M Reg |
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | N | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | BGA-133 | BGA-133 | BGA-49 |
| Output Voltage | 0.6 V to 5.5 V | 0.6 V to 5.5 V | 0.6 V to 5.5 V |
| Output Current | 20 A | 20 A | 15 A |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Input Voltage MAX | 20 V | 20 V | 20 V |
| Topology | Buck | Buck | Buck |
| Input Voltage MIN | 4.5 V | 4.5 V | 3.1 V |
| Switching Frequency | 770 kHz | 250 kHz to 800 kHz | 600 kHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | LTM4637 | LTM4637 | LTM4626 |
| Packaging | Tray | Tray | Tray |
| Input Voltage | 4.5 V to 20 V | 4.5 V to 20 V | 3.1 V to 20 V |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - |
| Type | uModule Regulator | DC/DC µModule Step-Down Regulator | uModule Regulator |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | Analog Devices / Linear Technology |
| Shutdown | Shutdown | Shutdown | Shutdown |
| Development Kit | DC1872A | DC1872A | - |
| Load Regulation | 0.2 % | 0.2 % | 0.5 % |
| Moisture Sensitive | Yes | Yes | Yes |
| Operating Supply Current | 17 mA | 17 mA | 2.3 A |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 119 | 119 | 260 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Tradename | uModule | uModule | uModules |
| Quiescent Current | - | - | 100 mA |
| Supply Voltage Min | - | - | 3.1 V |